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A remote interference fallback method and base station

A technology of remote interference and base station, which is applied in orthogonal multiplexing system, multiplexing communication, wireless communication and other directions to achieve the effect of improving average spectral efficiency and reducing downlink resource overhead.

Active Publication Date: 2021-08-10
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] In view of this, the present invention provides a remote interference fallback method and a base station, which are used to solve the current problem that the fixed duration of remote interference fallback easily leads to unnecessary downlink fallback overhead

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  • A remote interference fallback method and base station
  • A remote interference fallback method and base station
  • A remote interference fallback method and base station

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Embodiment Construction

[0075] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

[0076] see Figure 4 , Figure 4 It is a schematic flowchart of a remote interference fallback method provided in Embodiment 1 of the present invention. The method is applied to the first base station and includes the following steps:

[0077] Step 11: From at least one detected reference signal, the first base station selects the reference signal with the last timing reference point or t...

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Abstract

The present invention provides a remote interference fallback method and a base station, which belong to the technical field of wireless communication. The method applied to the first base station includes: selecting the reference signal with the last timing reference point from at least one detected reference signal Or the reference signal that satisfies the preset energy threshold and is the last reference signal of the timing reference point is used as the target reference signal, and the reference signal is sent by the second base station at the far end; The timing reference point when the reference signal is used to determine the back-off duration of the downlink time slot of the first base station; the first base station performs back-off of the downlink time slot according to the determined back-off time length. In the present invention, the backoff duration of the far-end interference is not fixed, but flexibly determined according to the time domain position of the detected reference signal, so as to minimize the interference backoff time while ensuring the far-end interference elimination effect. Reduced downlink resource overhead, thereby improving the average spectrum efficiency.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a remote interference fallback method and a base station. Background technique [0002] In the networking of a TDD (Time Division Duplexing, Time Division Duplex) system, in order to avoid uplink and downlink interference between cells, generally the same uplink and downlink configurations are selected. In addition, a guard interval (for example, Guard Period, GP for short) is set between the transmission of the downlink time slot and the uplink time slot. Generally, the length of the guard interval is N (<14) OFDM symbols. The selection of the guard interval length needs to ensure that the downlink transmission of the base station within a certain range (eg tens of kilometers) will not interfere with the uplink reception of the base station. [0003] Under normal circumstances, considering the loss of electromagnetic wave propagation in space, the loca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J11/00H04W16/10H04W72/04H04J13/00H04L5/00H04W72/08
CPCH04J11/0056H04W16/10H04L5/0048H04L5/0062H04J13/0029H04J13/0062H04W72/27H04W72/541H04W72/542
Inventor 刘建军柯颋侯雪颖徐晓东
Owner CHINA MOBILE COMM LTD RES INST
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